The ornamental design for a portable computer, as shown and described.

Description

FIG. 1 is a top front perspective view of the portable computer showing my new design, with the cover in the open position to show the display panel keyboard and cartridges in 2 of the four slots above the keyboard.

FIG. 2 is a front right side perspective view thereof.

FIG. 3 is a front perspective view of the computer on a reduced scale, with the cover in a closed position.

FIG. 4 is a rear perspective view thereof.

The left side of the portable computer is a mirror image of the right side.